#include<stdio.h>
int main()
{
	/*int i = 0;
	for (; i < 10;)
	{
		scanf_s("%d", a[i]);
		i++;
	}
	for (i = 0; i < 10;)
	{
		a[0] = a[i] >= a[i + 1] ? a[i] : a[i + 1];
		i++;
	}
	printf("%d", a[0]);*/
	int a, b;
	scanf_s("%d,%d", & a, & b);
	printf("%d,%d",a,b);

	return 0;
}